Since flashing my TP-Link router with OpenWrt, I've noticed BT downloads on my Synology NAS were dead slow or non-starters. The Synology Download Station requires uPnP / NAT-PMP which OpenWRT does not have enabled by default.
After port forwarding the TCP and UDP ports listed in the Synology Download Station BT settings, download speeds were back to normal.
Simple Fix
I was discouraged from enabling uPNP and NAT-PMP by the OpenWRT Wiki so decided to add static port forwarding to OpenWRT firewall instead.After port forwarding the TCP and UDP ports listed in the Synology Download Station BT settings, download speeds were back to normal.
